Influence of Individual Strut Failure on Performance of Deep Excavation in Soft Soil

Kamchai Choosrithong, Helmut Schweiger

Research output: Contribution to conferencePaper

Abstract

This extended abstract presents a numerical investigation of the response of individual strut failure by analysing a 30 m deep excavation in marine clay supported by a diaphragm wall and ten levels of struts. Insufficient embedment depth of the wall into the stiff soil layer has also been accounted for, simulating possible construction imperfections. An advanced constitutive model including double hardening plasticity and small strain stiffness is employed for the analysis. It could be shown that provided a robust design is put in place in the first place significant stress redistribution capacity is available avoiding catastrophic failure of the excavation when individual support elements fail.
Original languageEnglish
Pages316-319
DOIs
Publication statusPublished - 3 Aug 2018
EventChina – Europe Conference on Geotechnical Engineering - Vienna, Austria
Duration: 13 Aug 201816 Aug 2018

Conference

ConferenceChina – Europe Conference on Geotechnical Engineering
CountryAustria
CityVienna
Period13/08/1816/08/18

Keywords

  • Deep excavation
  • Strut failure
  • Finite element method

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